CN104399990A - Hard alloy-polycrystalline diamond compact with decorative patterns on surface and preparation method thereof - Google Patents
Hard alloy-polycrystalline diamond compact with decorative patterns on surface and preparation method thereof Download PDFInfo
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- CN104399990A CN104399990A CN201410570429.4A CN201410570429A CN104399990A CN 104399990 A CN104399990 A CN 104399990A CN 201410570429 A CN201410570429 A CN 201410570429A CN 104399990 A CN104399990 A CN 104399990A
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Abstract
The embodiment of the invention discloses a hard alloy-polycrystalline diamond compact with decorative patterns on the surface and a preparation method thereof. The method comprises the following steps: preparing a hard alloy part with irregular decorative patterns: selecting hard alloy mixtures and adopting a flow warm-pressing forming technique in an irregular combined mould with a plurality of irregular decorative pattern grooves in the surface, wherein the forming pressure is at 120-1000MPa and the forming temperature is at 120-200 DEG C; degreasing and sintering the formed parts, thereby acquiring the hard alloy part with the irregular decorative patterns, wherein the sintering temperature is at 1200-1500 DEG C and the time is 2-24 hours; preparing a compound transition layer; preparing polycrystal; compounding the polycrystalline compact. According to the embodiment of the invention, the inhomogeneous decorative pattern grooves are formed in the upper surface of the hard alloy layer, so that a more complex interface structure is achieved, the combining force between polycrystalline diamond and the hard alloy is further increased, and the anisotropy characteristics of an interface layer are relieved and eliminated.
Description
Technical field
The invention belongs to composite polycrystal-diamond technical field, particularly a kind of surperficial figuratum carbide alloy-composite polycrystal-diamond and preparation method thereof.
Background technology
Composite polycrystal-diamond is the composite that a kind of dimond synneusis and hard alloy substrate form, and has the advantages that hardness is high, wearability is good.Existing polycrystalline diamond-hard alloy composite sheet adopts W-Co kind carbide alloy as matrix material usually, then at the single sintering of high temperature (usual 1200 ~ 1600 DEG C), high pressure (usual more than 5Gpa); Also have the manufacture method adopting CVD glomerocryst cutting blade to strengthen, the Chinese patent cvd diamond as publication date to be the patent No. on October 3rd, 2012 be ZL201210200657.3 strengthens the preparation method of composite polycrystal-diamond.
Other, as carried out CVD or PVD diamond or cubic boron nitride, titanium nitride coating on carbide alloy.This technology is applied for many years, but this technology is only the cutting ability for improving carbide alloy, is the expansion continuity that Cemented Carbide Properties promotes.Adopt the diamond coating for hard alloy of CVD, PVD process, be mainly used in metal cutting aspect.
At present, carbide alloy-dimond synneusis composite sheet, for enhancing product performance, mainly concentrates on aspects such as increasing glomerocryst layer thickness, the improvement of glomerocryst bed boundary and glomerocryst composite sheet contour structures.
Be combined with carbide interface at glomerocryst, the Chinese patent of authorized announcement date to be the patent No. of on 06 26th, 2013 be ZL201220657434.5 has the diamond compact in straight trough indented joint face, the structure of this diamond compact bonding interface layer is for having regular texture, glomerocryst composite sheet is horizontal, longitudinal stress performance exists very big-difference, namely there is directionality, cause material anisotropy, thus cause use procedure product to destroy from most weak spot and be rapidly to other destroying and expand, reduce the performance of product.
Therefore, for the above-mentioned defect existed in currently available technology, be necessary to study in fact, to provide a kind of scheme, solve the defect existed in prior art, avoid causing dimond synneusis and carbide alloy composition surface problem loosely.
Summary of the invention
For solving the problem, the object of the present invention is to provide the preparation method of the figuratum carbide alloy-composite polycrystal-diamond in a kind of surface, by arranging rollet heterogeneous at the upper surface of hard alloy layer, there is more complicated interfacial structure, can improve further between dimond synneusis and carbide alloy in conjunction with hold, slow down, eliminate boundary layer anisotropic properties.
For achieving the above object, technical scheme of the present invention is:
A kind of surperficial figuratum carbide alloy-composite polycrystal-diamond preparation method, comprises the following steps:
S10, there is the hard alloy piece preparation of special-shaped decorative pattern: select carbide alloy mixture, be provided with in surface in the special-shaped assembling die of multiple special-shaped rollet, adopt warm flow compaction moulding process, briquetting pressure is 120 ~ 1000MPa, and forming temperature is 120 ~ 200 DEG C; Profiled member is carried out degreasing, sintering, and sintering temperature is 1200 ~ 1500 DEG C, and the time is 2 ~ 24 hours, obtains the hard alloy piece with special-shaped decorative pattern;
S20, the preparation of compound transition zone: adopt CVD method, at carbide alloy rollet and surface deposition molybdenum, deposit thickness is 1 ~ 20 micron;
S30, glomerocryst prepares;
S40, glomerocryst composite sheet is synthesized.
Preferably, S30, glomerocryst prepares to be specially,
S301, selects spherical micron diamond, and diadust granularity is 1 ~ 40 micron, carries out mixing and ball milling with cement;
S302, carries out vacuum drying by the ball milling product obtained, and baking temperature is 500 ~ 600 DEG C;
S303, is pressed into synneusis sheet by dry thing.
Preferably, S40, the synthesis of glomerocryst composite sheet is specially,
S401, loads in pyrophyllite block by cement carbide substrate and synneusis sheet;
S402, the pyrophyllite block assembled is put into cubic apparatus or top, two sides, be progressively forced into 3.2 ~ 8GPa, galvanization heats, and maintains 2 ~ 12min;
S403, lays down load, carries out follow-up removing and processes and namely obtain glomerocryst composite sheet at glomerocryst layer infiltration silicon alloy.
Preferably, described special-shaped rollet is that narrow and small lower end, two ends is roomy, and the degree of depth is 0.1 ~ 5mm, and decorative pattern width is 0.2 ~ 2mm.
Another technical scheme of the present invention is:
A kind of surperficial figuratum carbide alloy-composite polycrystal-diamond, above arbitrary described method is adopted to prepare, comprise the hard alloy layer that upper surface is provided with the special-shaped decorative pattern of several non-uniform Distribution, laminating is arranged on the compound transition zone on hard alloy layer surface, the polycrystalline diamond layer of bottom shape and hard alloy layer complementation.
Preferably, described special-shaped decorative pattern is that narrow and small lower end, two ends is roomy, and the degree of depth is 0.1 ~ 5mm, and decorative pattern width is 0.2 ~ 2mm.
Compared with prior art, beneficial effect of the present invention is as follows:
(1) there is more complicated interfacial structure, can improve further between dimond synneusis and carbide alloy in conjunction with hold, slow down, eliminate boundary layer anisotropic properties;
(2) product in use cobalt anticaltalysis is eliminated on the impact of properties of product;
(3) improve the shock resistance of product, improve the bending strength of product.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the hard alloy layer of the figuratum carbide alloy-composite polycrystal-diamond in the surface of the embodiment of the present invention;
Fig. 2 is the cross-sectional view of the figuratum carbide alloy-composite polycrystal-diamond in the surface of the embodiment of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
On the contrary, the present invention is contained any by the substituting of making on marrow of the present invention and scope of defining of claim, amendment, equivalent method and scheme.Further, in order to make the public have a better understanding to the present invention, in hereafter details of the present invention being described, detailedly describe some specific detail sections.Do not have the description of these detail sections can understand the present invention completely for a person skilled in the art yet.
The one surface figuratum carbide alloy-composite polycrystal-diamond preparation method of the embodiment of the present invention, comprises the following steps:
S10, there is the hard alloy piece preparation of special-shaped decorative pattern: select carbide alloy mixture, be provided with in surface in the special-shaped assembling die of multiple special-shaped rollet, adopt warm flow compaction moulding process, briquetting pressure is 120 ~ 1000MPa, and forming temperature is 120 ~ 200 DEG C; Profiled member is carried out degreasing, sintering, and sintering temperature is 1200 ~ 1500 DEG C, and the time is 2 ~ 24 hours, obtains the hard alloy piece with special-shaped decorative pattern;
Abnormity rollet is that narrow and small lower end, two ends is roomy, and the degree of depth is 0.1 ~ 5mm, and decorative pattern width is 0.2 ~ 2mm.
S20, the preparation of compound transition zone: adopt CVD (Chemical Vapor Deposition, chemical vapour deposition (CVD)) method, at carbide alloy rollet and surface deposition molybdenum, deposit thickness is 1 ~ 20 micron;
S30, glomerocryst prepares;
In embody rule example, S30 is specially,
S301, selects spherical micron diamond, and diadust granularity is 1 ~ 40 micron, carries out mixing and ball milling with cement;
S302, carries out vacuum drying by the ball milling product obtained, and baking temperature is 500 ~ 600 DEG C;
S303, is pressed into synneusis sheet by dry thing.
S40, glomerocryst composite sheet is synthesized;
In embody rule example, S40 is specially,
S401, loads in pyrophyllite block by cement carbide substrate and synneusis sheet;
S402, the pyrophyllite block assembled is put into cubic apparatus or top, two sides, be progressively forced into 3.2 ~ 8GPa, galvanization heats, and maintains 2 ~ 12min;
S403, lays down load, carries out follow-up removing and processes and namely obtain glomerocryst composite sheet at glomerocryst layer infiltration silicon alloy.
See Fig. 1 and Fig. 2, figuratum carbide alloy-the composite polycrystal-diamond in the surface prepared by above method comprises the hard alloy layer 3 that upper surface is provided with the special-shaped decorative pattern 4 of several non-uniform Distribution, laminating is arranged on the compound transition zone 2 on hard alloy layer surface, the polycrystalline diamond layer 1 of bottom shape and hard alloy layer complementation.And special-shaped decorative pattern is that narrow and small lower end, two ends is roomy, the degree of depth is 0.1 ~ 5mm, and decorative pattern width is 0.2 ~ 2mm.
By the figuratum carbide alloy-composite polycrystal-diamond in surface prepared with upper type, there is more complicated interfacial structure, can improve further between dimond synneusis and carbide alloy in conjunction with hold, slow down, eliminate boundary layer anisotropic properties.
The Performance comparision of the figuratum carbide alloy in surface of the zigzag glomerocryst composite sheet manufactured under equal conditions and the embodiment of the present invention is in table 1.
Under table 1 equal conditions, the composite polycrystal-diamond Performance comparision of same size
As can be seen here, through the composite polycrystal-diamond of above-mentioned process, its anisotropy is retarded, elimination.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. surface figuratum carbide alloy-composite polycrystal-diamond preparation method, is characterized in that, comprise the following steps:
S10, there is the hard alloy piece preparation of special-shaped decorative pattern: select carbide alloy mixture, be provided with in surface in the special-shaped assembling die of multiple special-shaped rollet, adopt warm flow compaction moulding process, briquetting pressure is 120 ~ 1000MPa, and forming temperature is 120 ~ 200 DEG C; Profiled member is carried out degreasing, sintering, and sintering temperature is 1200 ~ 1500 DEG C, and the time is 2 ~ 24 hours, obtains the hard alloy piece with special-shaped decorative pattern;
S20, the preparation of compound transition zone: adopt CVD method, at carbide alloy rollet and surface deposition molybdenum, deposit thickness is 1 ~ 20 micron;
S30, glomerocryst prepares;
S40, glomerocryst composite sheet is synthesized.
2. surface according to claim 1 figuratum carbide alloy-composite polycrystal-diamond preparation method, is characterized in that, S30, and glomerocryst prepares to be specially,
S301, selects spherical micron diamond, and diadust granularity is 1 ~ 40 micron, carries out mixing and ball milling with cement;
S302, carries out vacuum drying by the ball milling product obtained, and baking temperature is 500 ~ 600 DEG C;
S303, is pressed into synneusis sheet by dry thing.
3. surface according to claim 1 and 2 figuratum carbide alloy-composite polycrystal-diamond preparation method, is characterized in that, S40, and the synthesis of glomerocryst composite sheet is specially,
S401, loads in pyrophyllite block by cement carbide substrate and synneusis sheet;
S402, the pyrophyllite block assembled is put into cubic apparatus or top, two sides, be progressively forced into 3.2 ~ 8GPa, galvanization heats, and maintains 2 ~ 12min;
S403, lays down load, carries out follow-up removing and processes and namely obtain glomerocryst composite sheet at glomerocryst layer infiltration silicon alloy.
4. surface according to claim 1 and 2 figuratum carbide alloy-composite polycrystal-diamond preparation method, is characterized in that, described special-shaped rollet is that narrow and small lower end, two ends is roomy, and the degree of depth is 0.1 ~ 5mm, and decorative pattern width is 0.2 ~ 2mm.
5. the figuratum carbide alloy-composite polycrystal-diamond in surface, it is characterized in that, adopt as arbitrary in claims 1 to 3 as described in method prepare, comprise the hard alloy layer that upper surface is provided with the special-shaped decorative pattern of several non-uniform Distribution, laminating is arranged on the compound transition zone on hard alloy layer surface, the polycrystalline diamond layer of bottom shape and hard alloy layer complementation.
6. the figuratum carbide alloy-composite polycrystal-diamond in surface according to claim 5, is characterized in that, described special-shaped decorative pattern is that narrow and small lower end, two ends is roomy, and the degree of depth is 0.1 ~ 5mm, and decorative pattern width is 0.2 ~ 2mm.
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Cited By (5)
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| CN105772733A (en) * | 2016-03-25 | 2016-07-20 | 河南四方达超硬材料股份有限公司 | Manufacturing method of polycrystalline diamond compacts with super-thick diamond layers |
| CN108893718A (en) * | 2018-06-29 | 2018-11-27 | 河南富莱格超硬材料有限公司 | A kind of base material of composite polycrystal-diamond and preparation method thereof, composite polycrystal-diamond |
| CN109396448A (en) * | 2017-08-18 | 2019-03-01 | 深圳先进技术研究院 | Composite polycrystal-diamond and preparation method thereof |
| CN110328372A (en) * | 2019-08-06 | 2019-10-15 | 金华中烨超硬材料有限公司 | Plycrystalline diamond compound tool and 3C cutter composite polycrystal-diamond preparation process |
| CN110421162A (en) * | 2019-08-02 | 2019-11-08 | 金华中烨超硬材料有限公司 | The preparation process of combination grain composite polycrystal-diamond |
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| CN109396448A (en) * | 2017-08-18 | 2019-03-01 | 深圳先进技术研究院 | Composite polycrystal-diamond and preparation method thereof |
| CN108893718A (en) * | 2018-06-29 | 2018-11-27 | 河南富莱格超硬材料有限公司 | A kind of base material of composite polycrystal-diamond and preparation method thereof, composite polycrystal-diamond |
| CN108893718B (en) * | 2018-06-29 | 2021-04-06 | 河南富莱格超硬材料有限公司 | Base material of polycrystalline diamond compact, preparation method of base material and polycrystalline diamond compact |
| CN110421162A (en) * | 2019-08-02 | 2019-11-08 | 金华中烨超硬材料有限公司 | The preparation process of combination grain composite polycrystal-diamond |
| CN110328372A (en) * | 2019-08-06 | 2019-10-15 | 金华中烨超硬材料有限公司 | Plycrystalline diamond compound tool and 3C cutter composite polycrystal-diamond preparation process |
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Denomination of invention: Hard alloy-polycrystalline diamond compact with decorative patterns on surface and preparation method thereof Effective date of registration: 20200325 Granted publication date: 20170711 Pledgee: Bank of Jinhua Limited by Share Ltd science and Technology Branch Pledgor: JINHUA ZHONGYE SUPERHARD MATERIAL COMPOSITE Co.,Ltd. Registration number: Y2020330000113 |